50428404 has 72 divisors (see below), whose sum is σ = 138127080. Its totient is φ = 15420672.

The previous prime is 50428349. The next prime is 50428429. The reversal of 50428404 is 40482405.

50428404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 725904 + 49702500 = 852^2 + 7050^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129442 + ... + 129830.

Almost surely, 2^50428404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50428404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69063540).

50428404 is an abundant number, since it is smaller than the sum of its proper divisors (87698676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50428404 is a wasteful number, since it uses less digits than its factorization.

50428404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689 (or 684 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 50428404 is about 7101.2959380665. The cubic root of 50428404 is about 369.4523282836.

The spelling of 50428404 in words is "fifty million, four hundred twenty-eight thousand, four hundred four".